Microchip Technology, Inc. Real Time Clocks MCP79412-I/ST

Description
"Real Time Clock (RTC) IC Clock/Calendar 64B, 1Kb I²C, 2-Wire Serial 8-TSSOP (0.173"", 4.40mm Width)"
Request a Quote
Description
"Real Time Clock (RTC) IC Clock/Calendar 64B, 1Kb I²C, 2-Wire Serial 8-TSSOP (0.173"", 4.40mm Width)"
Request a Quote
Datasheet
Datasheet Summary
Powered by GS/AI

The MCP79412-I/ST is a battery-backed I¬=C real-time clock/calendar from Quarktwin Technology Ltd. It features a comprehensive timekeeping capability, tracking hours, minutes, seconds, day of week, day, month, and year, with leap year compensation until 2399. The device operates within a voltage range of 1.8V to 5.5V and has a low timekeeping current of 1.2 ¬µA at 3.3V, making it suitable for low-power applications. This part includes 1 Kbit of EEPROM memory, which is software write-protectable, and 64 bytes of battery-backed SRAM. Additionally, it has a 64-bit protected EEPROM area for storing unique identifiers, such as the EUI-64,Ñ¢ MAC address. The MCP79412-I/ST supports dual programmable alarms and features a versatile output pin that can be configured for clock output, alarm output, or general-purpose output. The device communicates via a 2-wire I¬=C interface with a clock rate of up to 400 kHz and operates over an industrial temperature range of -40¬8C to +85¬8C. It is available in an 8-lead TSSOP package, making it suitable for space-constrained designs. The automatic switchover to battery backup ensures continued operation during power interruptions, with timestamps logged for power-fail events.

Datasheet Summary
Powered by GS/AI

The MCP79412-I/ST is a battery-backed I¬=C real-time clock/calendar from Quarktwin Technology Ltd. It features a comprehensive timekeeping capability, tracking hours, minutes, seconds, day of week, day, month, and year, with leap year compensation until 2399. The device operates within a voltage range of 1.8V to 5.5V and has a low timekeeping current of 1.2 ¬µA at 3.3V, making it suitable for low-power applications. This part includes 1 Kbit of EEPROM memory, which is software write-protectable, and 64 bytes of battery-backed SRAM. Additionally, it has a 64-bit protected EEPROM area for storing unique identifiers, such as the EUI-64,Ñ¢ MAC address. The MCP79412-I/ST supports dual programmable alarms and features a versatile output pin that can be configured for clock output, alarm output, or general-purpose output. The device communicates via a 2-wire I¬=C interface with a clock rate of up to 400 kHz and operates over an industrial temperature range of -40¬8C to +85¬8C. It is available in an 8-lead TSSOP package, making it suitable for space-constrained designs. The automatic switchover to battery backup ensures continued operation during power interruptions, with timestamps logged for power-fail events.

Suppliers

Company
Product
Description
Supplier Links
Real Time Clocks - MCP79412-I/ST-ND - DigiKey
Thief River Falls, MN, United States
Real Time Clocks
MCP79412-I/ST-ND
Real Time Clocks MCP79412-I/ST-ND
"Real Time Clock (RTC) IC Clock/Calendar 64B, 1Kb I²C, 2-Wire Serial 8-TSSOP (0.173"", 4.40mm Width)"

"Real Time Clock (RTC) IC Clock/Calendar 64B, 1Kb I²C, 2-Wire Serial 8-TSSOP (0.173"", 4.40mm Width)"

Buy Now Datasheet
Clock and Timing IC 690-MCP79412-I/ST
IC RTC CLK/CALENDAR I2C 8TSSOP Product overview: MCP79412-I/ST from Microchip Technology is a Clock and Timing IC for clock generation, timing distribution, synchronization, RF systems, communication hardware, and digital boards. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include key electrical ratings, package details, and application requirements. Search-friendly keywords include clock generator, oscillator, timing, synchronization, Clock and Timing IC, Real Time Clocks ICs. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 690-MCP79412-I/ST can be used for catalog matching and distributor lookup.

IC RTC CLK/CALENDAR I2C 8TSSOP Product overview: MCP79412-I/ST from Microchip Technology is a Clock and Timing IC for clock generation, timing distribution, synchronization, RF systems, communication hardware, and digital boards. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include key electrical ratings, package details, and application requirements. Search-friendly keywords include clock generator, oscillator, timing, synchronization, Clock and Timing IC, Real Time Clocks ICs. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 690-MCP79412-I/ST can be used for catalog matching and distributor lookup.

Supplier's Site Datasheet
Shenzhen, China
Clock/Timing - Real Time Clocks
MCP79412-I/ST
Clock/Timing - Real Time Clocks MCP79412-I/ST
IC RTC CLK/CALENDAR I2C 8-TSSOP

IC RTC CLK/CALENDAR I2C 8-TSSOP

Supplier's Site Datasheet
Real Time Clock/calendar, -40 To 85Deg C; Date Format Microchip - 85R1782 - Newark, An Avnet Company
Chicago, IL, United States
Real Time Clock/calendar, -40 To 85Deg C; Date Format Microchip
85R1782
Real Time Clock/calendar, -40 To 85Deg C; Date Format Microchip 85R1782
REAL TIME CLOCK/CALENDAR, -40 TO 85DEG C; Date Format:YY-MM-DD-dd; Clock Format:HH:MM:SS; Clock IC Type:Calendar, Clock; Supply Voltage Min:1.8V; Supply Voltage Max:5.5V; Clock IC Case Style:TSSOP; No. of Pins:8Pins; Product Range:- RoHS Compliant: Yes

REAL TIME CLOCK/CALENDAR, -40 TO 85DEG C; Date Format:YY-MM-DD-dd; Clock Format:HH:MM:SS; Clock IC Type:Calendar, Clock; Supply Voltage Min:1.8V; Supply Voltage Max:5.5V; Clock IC Case Style:TSSOP; No. of Pins:8Pins; Product Range:- RoHS Compliant: Yes

Supplier's Site Datasheet
Integrated Circuits (ICs) - Clock-Timing - Real Time Clocks - MCP79412-I/ST - Shenzhen Shengyu Electronics Technology Limited
Futian, China
Integrated Circuits (ICs) - Clock-Timing - Real Time Clocks
MCP79412-I/ST
Integrated Circuits (ICs) - Clock-Timing - Real Time Clocks MCP79412-I/ST
IC RTC CLK/CALENDAR I2C 8TSSOP

IC RTC CLK/CALENDAR I2C 8TSSOP

Supplier's Site
Real Time Clocks - MCP79412-I/ST - Quarktwin Technology Ltd.
Shenzhen, Guangdong, China
Real Time Clocks
MCP79412-I/ST
Real Time Clocks MCP79412-I/ST
Real Time Clock (RTC) IC Clock/Calendar 64B, 1Kb I²C, 2-Wire Serial 8-TSSOP (0.173", 4.40mm Width)

Real Time Clock (RTC) IC Clock/Calendar 64B, 1Kb I²C, 2-Wire Serial 8-TSSOP (0.173", 4.40mm Width)

Buy Now Datasheet

Technical Specifications

  DigiKey ERSAELECTRONICS PTE. LTD. Lingto Electronic Limited Newark, An Avnet Company Shenzhen Shengyu Electronics Technology Limited Quarktwin Technology Ltd.
Product Category IC Clocks IC Timers IC Clocks IC Clocks IC Clocks IC Clocks
Product Number MCP79412-I/ST-ND 690-MCP79412-I/ST MCP79412-I/ST 85R1782 MCP79412-I/ST MCP79412-I/ST
Product Name Real Time Clocks Clock and Timing IC Clock/Timing - Real Time Clocks Real Time Clock/calendar, -40 To 85Deg C; Date Format Microchip Integrated Circuits (ICs) - Clock-Timing - Real Time Clocks Real Time Clocks
Device Type Real Time Clock Real Time Clock Calendar, Clock; Real Time Clock Clock/Calendar; Real Time Clock Real Time Clock
Package Type Surface Mount; TSSOP; "8-TSSOP (0.173"", 4.40mm Width)" Tube TSSOP Surface Mount; Surface Mount Surface Mount; SSOP; 8-TSSOP (0.173\", 4.40mm Width)
Supply Voltage 1.8 to 5.5 volts 1.8 to 5.5 volts 1.8 to 5.5 volts 1.8 to 5.5 volts
Unlock Full Specs
to access all available technical data